Embroidery-machine.



J. A. GROEBLI.

EMBROIDERY MAGEINE.

APPLIOATION.IILED JAIL so, 1908.

Patented June 27, 1911.

I/VVENTOI? W/TNESSES a m G. W M W WW 0 J ayaawwf To an it concern:

JOSEPH A. GROEBLLOF NEW YORK, IN. '55., ASSIGNORTO KURSI-IEEDT MANUFACTURING 1 00., OF NEW YORK, N. Y., A. CORPORATION OF NEW YORK.

aeoiass.

Be it known'ithat I, JosnrrnA. Gnonnri,

I a citizen-of the United States, and resident of'the borough of Manhattan, city, county,

State: of-New Yonk, have invented cerjt'afin new and usefulImprovements in Embroidery-Machines, of which the following is a specification.

-My invention relates to embroiderypmachines and has for its object to provide a parallel motion mechanism for properly I :controlling the fabric frame, 'so that the whole frame will move uniformly throughout its-entire extent. When the fabric frame g raph is attached are of the same dimenslons and size as those figures close to the point of attachment of said pantograph.

My invention will be fully described here-- inafter and the features of novelty will be pointed out in theappendedclaims.

Reference is to be had to the accompanying drawings; in which Figure 1 is a side elevation of so much of an embroidery machine as is necessary to illustrate'my invention. Fig. 2 'is' a detail face view of one of the supporting bell cranks in my device; and Fig. 3 is a vertical section thereof. 1

A is'the stationary frame of the machine I and B is movable fabric frame which may be of any customary construction and which is connected with the usual pant-ograph or jacquard at any suitablepoint. The frame Bis arranged to carry the fabric with which cooperates the usual needle carrying bars of any suitable construction, which I have omitted for the sake of clearness.

, E, E, and E are bellcrank levers pivotally carried at-F' by brackets F secured to the stationary frame A. The one member of the fabric frame B. The free end of each of each of these levers 1 1,15 and E is provided at its free end with a roller E which rollers engage the lowerhorizontal portion of the other members of said levers EQE H are located between said ring H and said member G, suitable races being provided for the accommodation of said hallsH.

Specification of Letters Patent. P te t June 7, 191i Application filed January a0, 1903.

Serial No. 413,390.

The rings H are provided with projections.

H which are connected by a metal band I 'sothat the three bell cranks will move in unison. The bell cranks serve to support the fabric frame B from below and provide for a uniform up and down movement of said frame B. Secured to the pivot of the lever E is an arm J which has its free end is secured. The other ends of the springs M are fastened to projections M forming part of a counterpoise weight N. This weight is so graduated as to counterbalance the weight of the fabric frame B and surrounds the rod K loosely, so as to be capable of an up and down movement relatively to said ro I Asthe embroidery machine is operated there is a tendency to produce a swinging movement of the weight N. To. overcome this I attach a downwardly projecting rod N to the lower part ofthe weight N, which rod is engaged by. a clamping device. This clamping device comprises a aw N carried by a lever N pivoted .on a stationary part of the machine at N and having its free end pivotally secured/to a sliding bar N. This bar N slides in a bearing N and has its free end adjacent to a cam N located on a'suitable power shaft N. The jaw N cooperates with a second stationary jaw N which is mounted on a suitable part of the machine, so that the rod N extends between the two jaws N and N Thusias the shaft N is rotated and with it the cam N the barN will be moved in its'bcaring and will swing theleve'r i on its pivot and periodically separate the' clamping jaws N and N The bar N and lever N are. returned to their normal position by 'a spring N This periodical releasing. of:the clamping jaws from engagement with the rod N permits the weight N to follow the general movements of the counter-balancing or parallel motion device, while at thesa'me time it arrests any tendency of the weight N to swing or vibrate. If desired the clamping device may be such as to act constantlv on the memat the top andbottom respectively of the ber secured to the weight N with enoughforce to prevent a swinging or vibrating movement of said Weight and yet not ob;

struct any movement of the weight to ad ,just itself to the motion of the counterbalancing device.

' To provide for an even and uniform horizontal movemer of'the fabric frame, I provide two links 0 and O, which are pivotally connected at'O and O to} similar points frame B. The other end of each of these links 0 .and O is pivotally connected at P ,.with triangular members P" and-'1 fulcrumed on the frame A at P and P respectively'. These-members P and P are connected together by a rod having a pro jection Q".

' Ris an arm pivoted to thev frame A at R and havingits free end locatedfunder the projection Q: and in. engagement therewith.

S, is a s ring which has its one end fastened to't e arm R and its other end secured to the frame A. This spring exerts an upward pull on the arm R and in turn on the rod Q. This in turn tends to swing the triangular members P and P ontheir pivo'ts to the leftin Fig. 1 so that the spring serves to balance the movement of the frame Bin a horizontal direction.

. From the foregoing description it will be ame to which my inseen that'the fabric is evenly. balanced and vention is applied the movement of the frame throughout it entirely is uniform and parallel.

In order that the pointsO 0 may move exactly alike, the. distance equal to P O, the distance P P equal. to P P, and the distance P P5 equal to P, P.

I claim- I .1. In an embroidery machine, a fabric frame, connected means for supporti'ngsaid ,framefrom, below, a resilient counterbalsaid members and to said fabric frame near I the top and bottom thereof"respectively.

l on said main fr'ame,,and liiiks'havi'ng their 3. In an embroidery machine, a main frame,.a fabric frame l' aviug'para-llel upper" and lower b ars,..connected members pivoted one end pi'votally securedfto each of said upper and lowerbars ofthe-fabric frame, and their other end connected with said members. f

4. In an embroidery'lifnichine, a' main frame, a fabricframe having parallel bars, members pivoted on said mam frame, a rod frame,

P. 0 should be members and links secured to each of having. its ends secured t6 saidmembers, links connecting said members with the parallel bars of the fabric frame, and a counterbalancing device arranged upon said rod.

5. In an embroidery machine, a main frame, a fabric frame, bell cranks pivotal];

carried by said main frame, one member of each bell crank engaging saidfabric frame, a strip connecting the other members of the bell cranks, a -lever connected withvone of said bell cranks, another lever pivotally mounted on the main frame, a'connection between sai d levers, resilient, means attached to said connection, and a counterbalancing weight securedto said resilient means. 1

6 In an embroidery machine {a stationary mam frame, a fabric frame m'ovablelongi-f tudinally, separate means movably mounted on 531d main frame, a connection between said-means and a separate I'1 gId COn!1eCt10I1 from each of said means to the upper and lower poitions the fabric frame respec-' tively to cause said portions to move in 'exactly the same manner in opposite longitudinal directions.

.7. In an embroidery machine a fabric connected means for movablysupporting said frame, a' counter-balancing device connected with said means, separate devices mounted on a stationary portion of.

said machine, a connection between said de- V1005 and a separate rigid connection from each of said devices to the upper and lower portions of the fabric frame respectively-to insure equal horizontal movement 1n oppoj site dlrections of said upper and lower por-"' tions.

8. In an embroidery machine, a movable fabric frame having a horizontal and af'verti-l cal member and mechanism arranged to 06- said horizontal member at two operate with ormore points combined with rigidmfeans connected with the frame adjacent. to the upper'and lower ends of said vertical memsaid fabric'jframe in any direction.

9. In an?" inbroidery machine a fabric frame, a parallel an equalmovement of said frame throughout its entire' extent, a 'counterbalancing motion device for insuring weight, a resilient connection between said weightand said parallel motion device, and a clamp for preventing vibratory movement (if-said weight. I y

10. In an embroidery machine, a fabric frame, a parallel motion device for insuring an equal movement of said frame through its entire extent, a counterbalancing weight,

a 'l'GSlllOItt' connection betweens'aid weight and said parallel mot-ion device, :clamp for preventing vibratory movemen of said weight and mechanism for periodically releasing said clamp.

"11. In an embro1dery,machine, a fabric 110 her to insure equal extent of movement of frame, connected means for stipporting said frame from helo\v,a counterbalanclng device eonneeted with sand 11] tans, and mechanism v ositively eonneeted with said frame at the top and bottom thereof to insure a uniform horlzmital movement of said frame.

12; in an embroidery maehine, a stationary main t'rame a lllt 'able fabric frame,

and meehanism supported on the main frame and rigid means connected with said meehanism and positively connected with the upper and lower portions of the fabric frame respectively to eause them to move in exactly the same manner.

13. In an embroidery machine, a stationary support, a movable fabric frame, means per and lower portions of the fabric frame respectively to eause them to make the same extent of movement.

' In Witness whereof, I have hereunto set my hand in the presence of two subscribing witnesses, this 28 day of January, 1908.

JOSEPH .A. Li liQlQl 3LI. Witnesses [hmnr EGLI, Anohrn LEIBUNDGERT. 

